Abstract:

In order to solve the stationcrossing problem for double shield TBM in the construction of urban rail transit tunnel, the doubleshield TBM construction of Qingdao Metro Line 2 is taken as the study background. According to the specific situation of the station where the TBM is based, combined with the construction conditions of the station and the impact of the TBM driving through station, two construction methods, i.e. empty push and movement are researched and implemented. A reasonable plan and key measures are formulated. The technical problems such as multiple disassembly, assembly, commissioning and the impact of the doubleshield TBM on the station are solved, which provides reference for double shield TBM construction of Qingdao metro line 1, line 4 and line 8 in the next stage.

Key words: Qingdao metro, doubleshield TBM, stationcrossing, empty push, movement